Do i need a new thermostat

[afroman18]

My car seems to run alot better during the daytime when its warm out and at night when its colder it has a sputter and doesn't seem to run as good i was thinkin thermostat but im not sure any opinions would help.

 

[OGstackadoIIa]

I was gonna answer your question, but then I got high :lol:

I think a thermostat issue would have to do more with the car overheating after driving it too much. I think when the thermostat gets bad it typically doesn't allow the water/coolant to flow, causing the engine to overheat.

SOmeone correct me if I'm wrong :what:

 

[00DC2TW]

I was gonna answer your question, but then I got high :lol:

I think a thermostat issue would have to do more with the car overheating after driving it too much. I think when the thermostat gets bad it typically doesn't allow the water/coolant to flow, causing the engine to overheat.

SOmeone correct me if I'm wrong :what:

that or it allows the car to overcool itself, and stays below normal operating temperature, which is also bad on the engine

 

[OGstackadoIIa]

that or it allows the car to overcool itself, and stays below normal operating temperature, which is also bad on the engine

Yeah, stuck open or closed; either way sucks

 

[Cripton805]

Could be the coolant temp sensor.
Too much fuel or lack of fuel due to the fact the sensor cannot sense the temperature.

 

[afroman18]

if its the coolant temp sensor wouldnt it act up in the daytime too?

 

[blaketeg]

I was gonna answer your question, but then I got high :lol:

I think a thermostat issue would have to do more with the car overheating after driving it too much. I think when the thermostat gets bad it typically doesn't allow the water/coolant to flow, causing the engine to overheat.

SOmeone correct me if I'm wrong :what:

Actually they typical stay open, there rarely stay stuck in the closed position

and to the OP, Check your plugs. Denser cold air might be just to much for the gap. <---this is doubtful but just an idea

do you have and CEL's?

 

[afroman18]

no CEL's plugs and wires fairly new but shop gaped them so i assumed they did it right......may have assumed wrong:smackself

 

[Cman46290]

not a thermostat issue.. need more info.

 

[OGstackadoIIa]

IMO it doesn't really sound like you're having a cooling issue

 

[afroman18]

i just thought cooling cause of it acting up at night when its cooler sometimes if i drive at night for a while and let it warm up and shut it off for bout 10-15 mins itll act right but not very often

 

[afroman18]

just a thought it used ta bog down alot day or night before i replaced the wires plugs rotor cap distributor and fuel filter is there anything else i should change to fix it

 

[<CleanNDirty>]

i know if you have an old battery that the cold can give you trouble starting. But you said its running wrong at night. Could flush radiator(might have 2 diff coolants in there), could also see if there is a gap forming from gaskets getting cold. its getting warm out though so you shouldnt have many probs anymore. Im just trying to think of what can be affected by change in temp. good luck dude

 

[afroman18]

batt isnt even a year old i may try just some seafoam and some fuel injector cleaner could be just clogged up:what:

 

[rexpepper123]

o2 sensor? plugged cat? i donno man. take your injectors out and clean them? lol just tryin to give ya some ideas